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Diffstat (limited to '')
-rw-r--r-- | library/vendor/Zend/Paginator/SerializableLimitIterator.php | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/library/vendor/Zend/Paginator/SerializableLimitIterator.php b/library/vendor/Zend/Paginator/SerializableLimitIterator.php new file mode 100644 index 0000000..0e2e3d0 --- /dev/null +++ b/library/vendor/Zend/Paginator/SerializableLimitIterator.php @@ -0,0 +1,159 @@ +<?php +/** + * Zend Framework + * + * LICENSE + * + * This source file is subject to the new BSD license that is bundled + * with this package in the file LICENSE.txt. + * It is also available through the world-wide-web at this URL: + * http://framework.zend.com/license/new-bsd + * If you did not receive a copy of the license and are unable to + * obtain it through the world-wide-web, please send an email + * to license@zend.com so we can send you a copy immediately. + * + * @category Zend + * @package Zend_Paginator + * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com) + * @license http://framework.zend.com/license/new-bsd New BSD License + * @version $Id$ + */ + +/** + * @category Zend + * @package Zend_Paginator + * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com) + * @license http://framework.zend.com/license/new-bsd New BSD License + */ +class Zend_Paginator_SerializableLimitIterator extends LimitIterator implements Serializable, ArrayAccess +{ + + /** + * Offset to first element + * + * @var int + */ + private $_offset; + + /** + * Maximum number of elements to show or -1 for all + * + * @var int + */ + private $_count; + + /** + * Construct a Zend_Paginator_SerializableLimitIterator + * + * @param Iterator $it Iterator to limit (must be serializable by un-/serialize) + * @param int $offset Offset to first element + * @param int $count Maximum number of elements to show or -1 for all + * @see LimitIterator::__construct + */ + public function __construct (Iterator $it, $offset=0, $count=-1) + { + parent::__construct($it, $offset, $count); + $this->_offset = $offset; + $this->_count = $count; + } + + /** + * @return string representation of the instance + */ + public function serialize() + { + return serialize(array( + 'it' => $this->getInnerIterator(), + 'offset' => $this->_offset, + 'count' => $this->_count, + 'pos' => $this->getPosition(), + )); + } + + public function __serialize(): array + { + return array( + 'it' => $this->getInnerIterator(), + 'offset' => $this->_offset, + 'count' => $this->_count, + 'pos' => $this->getPosition(), + ); + } + + /** + * @param string $data representation of the instance + */ + public function unserialize($data) + { + $dataArr = unserialize($data); + $this->__construct($dataArr['it'], $dataArr['offset'], $dataArr['count']); + $this->seek($dataArr['pos']+$dataArr['offset']); + } + + public function __unserialize(array $data): void + { + $this->__construct($data['it'], $data['offset'], $data['count']); + $this->seek($data['pos']+$data['offset']); + } + + /** + * Returns value of the Iterator + * + * @param int $offset + * @return mixed + */ + #[\ReturnTypeWillChange] + public function offsetGet($offset) + { + $currentOffset = $this->key(); + $this->seek($offset); + $current = $this->current(); + $this->seek($currentOffset); + return $current; + } + + /** + * Does nothing + * Required by the ArrayAccess implementation + * + * @param int $offset + * @param mixed $value + */ + public function offsetSet($offset, $value): void + { + } + + /** + * Determine if a value of Iterator is set and is not NULL + * + * @param int $offset + */ + public function offsetExists($offset): bool + { + if ($offset > 0 && $offset < $this->_count) { + try { + $currentOffset = $this->key(); + $this->seek($offset); + $current = $this->current(); + $this->seek($currentOffset); + return null !== $current; + } catch (OutOfBoundsException $e) { + // reset position in case of exception is assigned null + $this->rewind(); + $this->seek($currentOffset); + return false; + } + } + return false; + } + + /** + * Does nothing + * Required by the ArrayAccess implementation + * + * @param int $offset + */ + public function offsetUnset($offset): void + { + } +} |